code: def current_backend_str() -> str:
      return "mxnet"
  
file_path: ivy/ivy/functional/backends/mxnet/general.py
imports: import mxnet
  from typing import Union, Optional
  import numpy
  from ivy.utils.exceptions import IvyNotImplementedException
label_desc: Use image node_id 1 for calling a global function with example usage: current_backend_str() and returns: str